Japan Airlines has vowed to act to restore public trust following a series of incidents when pilots were found to be drunk.

A pilot for the airline was arrested at Heathrow in October after arriving to work with around nine times the legal alcohol limit in his bloodstream.

Jal has had 19 incidents since August 2017 in which pilots failed the carrier’s own alcohol tests, with 12 flights being delayed as a result while substitute pilots were found for the other seven, according to the BBC.

The carrier today revealed it would be taking “concrete actions” in response to a business improvement order issued by Japan’s transport and tourism ministry in December.

Jal said: “The order was issued in relation to a series of alcohol-related incidents and the company is determined to act swiftly to rebuild the foundation for a safe and secure operational structure.

“To meet the expectations of our valued customers, Jal will work ever harder to enhance service levels and make contributions to society in an effort to restore public trust and increase the company`s corporate value.

“In addition to taking measures to prevent the recurrence of similar acts, the company will inspect the Jal Group thoroughly from a safety perspective and re-build the foundation of the company, including the improvement of the corporate culture and human resources development.”

The bid to restore public trust includes preparing improvements at Tokyo’s Haneda and Narita airports for 2020 when the country hosts the Olympic and Paralympic Games Tokyo and expects to attract 20 million foreign visitors.

“Furthermore, Jal will continue to take initiatives to create new values, develop human resources and solve social issues,” the airline added while setting out a new rolling medium term management plan.

Other initiatives include launched a mid to long-haul low cost carrier and expand partnerships with other airlines to serve 500 cities by 2020.

The airline also pledged to improve “basic product and service quality” including on-time operations as well as enhancing the operation of its website and apps.